12 Days of Christmas
823
99 Bottles of Beer
557
Abundant Numbers
543
Christmas Trees
662
Diamonds
199
Divisors
840
571
Emirp Numbers
360
Evil Numbers
338
Fibonacci
643
Fizz Buzz
393429638470433706509700598500589575624477472644543705
Kolakoski Sequence
254
Leap Years
473
Niven Numbers
519
Odious Numbers
338
Pangram Grep
402
Pernicious Numbers
196
Prime Numbers
441
473444
Sierpiński Triangle
90
Tongue-twisters
707
United States
96